Extreme version of diabetes; (term) referred to as Mellitus instead.
Similar to Triabeetus, Mellitus is only used in situations of awe or mega astonishment.

When you see someone with not only diabetes, but the beetus, kind of like that exept with Mellitus. People with Mellitus is considered unhealthy betics. Have you ever been to a hospital and seen a dude with just straight up Triabeetus, perhaps even Quadrabeetus? I'm talking with diabetic neuropathy, the works. That is call Diabeetus Mellitus.